Literally I only wear your pants, I wish you'd bring out more patterns and colours!!
Original Navy and Marle Stripe - med & 3XL only
Thunderpants organic cotton and elastane fabric is super stretchy, comfy and easy-fit. There’s no nasty, scratchy elastic that digs in making them the ultimate comfy undie.
The undie styles are designed to sit in the natural curves of the body and are cut with plenty of fabric to cover your bum. Because our fabric is a bit thicker than you may be used to and has great retention and recovery, they may feel like they fit a bit tighter.
See the size guide below to help you choose the right size. If you happen to fall between the measurements in the undies, we recommend going up a size rather than down.... Our fabric is stretchy enough that a bigger size will often still fit, but won’t feel as tight. For the other garments, Bike Shorts, Leggings, and Camis, you should be ok in the same size as your Thundies but obviously all bodies are unique and how you want to wear them varies.
The sizes are standard UK sizes.
| Women's | XS 6 |
S 8 |
M 10 - 12 |
L 14 - 16 |
XL 18 - 20 |
2XL 22 - 24 |
3XL 26 - 28 |
| waist inches | 23 - 25 | 27 - 29 | 31 - 33 | 35 - 37 | 39 - 41 | 43 - 45 | 47 - 49 |
| hip inches | 31 - 33 | 35 - 37 | 39 - 41 | 43 - 45 | 47 - 49 | 51 - 53 | 55 - 57 |
| bust inches | 26 - 30 | 30 - 34 | 34 - 38 | 38 - 42 | 42 - 46 | 46 - 48 | - |
Hipster vs Original vs Sky Rise?
The three styles are exactly the same around the legs and bottom, the hipster is low rise sits on your low hip, the originals are higher and usually fall just below the belly button, and the sky rise are a high waisted that taper in at the top to sit on your natural waist.
Briefs and Boxers
|
|
small |
medium |
large |
x large |
|
waist cm |
70 - 80 |
80 - 90 |
90 - 100 |
100 - 110 |
|
waist inches |
28 - 32 |
32 - 36 |
36 - 40 |
40 - 44 |
Kids
|
children |
small |
medium |
large |
|
age |
2 - 4 years |
5 - 7 years |
8 - 10 years |
A new navy and marle stripe with peachy binding in our super comfy original style undies.
Organic Cotton. UK Made. Cheeky Goodness.
- Fit
- Fabric
- Care
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The original comfy undies that don't go up your bum. In sizes small through to 3XL, check our size guide against your measurements. This very comfortable full brief sits in the natural crease at the top of the leg and just under the navel. Thunderpants are cut with enough fabric to cover your rear end and the comfy bands hold them in place so even the most active folk will no longer need to readjust their underwear.
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The Thunderpants fabric is 90% organically grown cotton and 10% elastane to give it that super comfy, soft stretchy feel. The waist and leg bands are constructed in the same, lovely fabric eliminating the need for the addition of nasty, grippy elastic and adding to the enjoyment of your Thunderpants experience. All the garments are made locally and lovingly in the UK.
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To preserve the print and life of the fabric we suggest you do not soak or bleach your Thunderpants items. Use a gentle detergent in a cold machine wash and dry your Thunderpants on the line, not in the drier.
Your Thunderpants are not only super comfy but they are designed to withstand some pretty staunch stuff, so get into them and get on out there!
Made in UK
Planet Friendly
Cheeky Goodness
Original Navy and Marle Stripe - med & 3XL only
Customer Reviews
Overall rating: 5.0 / 5 from 196 reviews.
Great fitting pants. Not much more to say!
C. J. 5/5 Verified
Very soft and comfy. Lots of stretch too.
H. P. 5/5 Verified
Love the material and the chunckyness of them very comfy.
V. C. 5/5 Verified
Material is too thick
R. T. 2/5 Verified
Very comfortable. Exellent value. Ordering and delivery very simple,and straight forward.
P. J. 5/5 Verified
I feel like a superwoman wearing these, they are so comfy and they look awesome!
L. H. 5/5 Verified
Love these knickers. So comfortable and made of really good quality thick cotton.
L. P. 5/5 Verified
I love these pants! I’ve collected several pairs over the years. So comfortable I don’t know I’m wearing them. I don’t need more but then you launch a new pattern…. Would be rude not to buy a pair.
J. B. 5/5 Verified
Great, as always. (I sized up, as always, from M to L)
J. S. 5/5 Verified
Great, as always. (I sized up, as always, from M to L)
J. S. 5/5 Verified
Great, as always. (I sized up, as always, from M to L)
J. S. 5/5 Verified
These pants are the best I’ve ever had! Comfortable, soft cotton, built to last, flattering and toovcool for school. I bought the plain black pair which are multi purpose and perfect for jumping into the sea or a mountain stream on a hot day but I can recommend the stripes too if you want to go pirate! Thank you Thunderpants peeps! 🤍
E. M. 5/5 Verified
Love these! Have a few now and they wash and wear and come up like new. Also they feel great.
G. C. 5/5 Verified
Lovely feel and love the jolly patterns!
P. B. 5/5 Verified
These are THE most comfortable undies I have ever had! No wedgies EVER! They are high quality and will last for years!
S. S. 5/5 Verified
These knickers are just the best …. I have been wearing them for years ….the double gusset is wonderful …and the quality and generous construction has remained consistent …love em
L. W. 5/5 Verified
Classic, fits great, got a full week of them so I'm never without exactly what I need.
M. Y. 5/5 Verified
Love the vibe.
M. Y. 5/5 Verified
Great vibrant orange. Love it.
M. Y. 5/5 Verified
I only wear thunder pants. They are the best, fit good, wash great and don’t change shape. These last absolutely ages!!
T. M. 5/5 Verified
Knickers to cheer you up!
N. C. 5/5 Verified
Finally comfy pants that fit and don’t ride up!
M. Y. 5/5 Verified
So comfy! And fun
C. S. 5/5 Verified
Certainly not scratchy - as ever very comfortable - absolutely the best. I love the more subtly pattern and colours of the colourway. Fabulous contrast between the main fabric and the bright orange trim - subtle and stylish, probably the most subtle and stylish of all the Thunderpants I have.
S. J. 5/5 Verified
Good quality, so comfortable anf lovely bright colours
S. J. 5/5 Verified
Love Thunderpants and orange is my favourite colour so these are perfect.
W. D. 5/5 Verified
Great pants, very comfy!
O. T. 5/5 Verified
As always, loyal customers who love thunderpants
R. W. 5/5 Verified
I’ve been exclusively wearing Thunderpants for many years now, and wouldn’t choose anything else. They are phenomenally comfortable, and last for ages. So glad that they’re available in the UK now 🙏🏻
R. L. 5/5 Verified
The comfiest pants ever in the loveliest colour way 🩷💚🩷💚Love them!
L. H. 5/5 Verified
superb pants
F. D. 5/5 Verified
Peachy is a perfect colour for people with pale skin to wear under light coloured clothes.
S. E. 5/5 Verified
My measurements are between sizes so I followed advice to size up, so pleased that I did these are super comfortable and a great fit.
S. E. 5/5 Verified
Good thick warm pants. A little bit tight on my matching thunder thighs, otherise, all good. Would suggest sizing up, depending on your leg shape.
R. I. 5/5 Verified
Love these pants and love this colour!
F. C. 5/5 Verified
Thunderpants are my go-to underwear now (sorry M&S!) These are so comfortable and I think much more flattering than any other style.
F. C. 5/5 Verified
I bought my first part of Thunderpants when I lived in NZ 25 years ago. They saw me through 2 pregnancies & beyond. My perimenopausal body is alas too big for the size I bought in my 20s. Beyond excited to rediscover your brand now I'm in the UK. My bum is so happy, so secure & snug. Thank you!!!
V. B. 5/5 Verified
I love these pants
C. O. 5/5 Verified
Always fast and love those pants rated top of Ethical Consumer's charts.
F. S. 5/5 Verified